Examples with DescriptorDigest com.google.cloud.tools.jib.api.DescriptorDigest used on opensource projects

Example 31 with DescriptorDigest

use of com.google.cloud.tools.jib.api.DescriptorDigest in project jib by GoogleContainerTools.

the class JibRunHelper method assertThatExpectedImageDigestAndIdReturned.

static void assertThatExpectedImageDigestAndIdReturned(Path projectRoot) throws IOException, DigestException {
    Path digestPath = projectRoot.resolve("build/jib-image.digest");
    Assert.assertTrue(Files.exists(digestPath));
    String digest = new String(Files.readAllBytes(digestPath), StandardCharsets.UTF_8);
    DescriptorDigest digest1 = DescriptorDigest.fromDigest(digest);
    Path idPath = projectRoot.resolve("build/jib-image.id");
    Assert.assertTrue(Files.exists(idPath));
    String id = new String(Files.readAllBytes(idPath), StandardCharsets.UTF_8);
    DescriptorDigest digest2 = DescriptorDigest.fromDigest(id);
    Assert.assertNotEquals(digest1, digest2);
}

Example 32 with DescriptorDigest

use of com.google.cloud.tools.jib.api.DescriptorDigest in project jib by google.

the class BuildResult method fromImage.

/**
 * Gets a {@link BuildResult} from an {@link Image}.
 *
 * @param image the image
 * @param targetFormat the target format of the image
 * @return a new {@link BuildResult} with the image's digest and id
 * @throws IOException if writing the digest or container configuration fails
 */
static BuildResult fromImage(Image image, Class<? extends BuildableManifestTemplate> targetFormat) throws IOException {
    ImageToJsonTranslator imageToJsonTranslator = new ImageToJsonTranslator(image);
    BlobDescriptor containerConfigurationBlobDescriptor = Digests.computeDigest(imageToJsonTranslator.getContainerConfiguration());
    BuildableManifestTemplate manifestTemplate = imageToJsonTranslator.getManifestTemplate(targetFormat, containerConfigurationBlobDescriptor);
    DescriptorDigest imageDigest = Digests.computeJsonDigest(manifestTemplate);
    DescriptorDigest imageId = containerConfigurationBlobDescriptor.getDigest();
    return new BuildResult(imageDigest, imageId, false);
}

Example 33 with DescriptorDigest

use of com.google.cloud.tools.jib.api.DescriptorDigest in project jib by google.

the class LocalBaseImageSteps method cacheDockerImageTar.

@VisibleForTesting
static LocalImage cacheDockerImageTar(BuildContext buildContext, Path tarPath, ProgressEventDispatcher.Factory progressEventDispatcherFactory, TempDirectoryProvider tempDirectoryProvider) throws IOException, LayerCountMismatchException {
    ExecutorService executorService = buildContext.getExecutorService();
    Path destination = tempDirectoryProvider.newDirectory();
    try (TimerEventDispatcher ignored = new TimerEventDispatcher(buildContext.getEventHandlers(), "Extracting tar " + tarPath + " into " + destination)) {
        TarExtractor.extract(tarPath, destination);
        InputStream manifestStream = Files.newInputStream(destination.resolve("manifest.json"));
        DockerManifestEntryTemplate loadManifest = new ObjectMapper().configure(MapperFeature.ACCEPT_CASE_INSENSITIVE_PROPERTIES, true).readValue(manifestStream, DockerManifestEntryTemplate[].class)[0];
        manifestStream.close();
        Path configPath = destination.resolve(loadManifest.getConfig());
        ContainerConfigurationTemplate configurationTemplate = JsonTemplateMapper.readJsonFromFile(configPath, ContainerConfigurationTemplate.class);
        // Don't compute the digest of the loaded Java JSON instance.
        BlobDescriptor originalConfigDescriptor = Blobs.from(configPath).writeTo(ByteStreams.nullOutputStream());
        List<String> layerFiles = loadManifest.getLayerFiles();
        if (configurationTemplate.getLayerCount() != layerFiles.size()) {
            throw new LayerCountMismatchException("Invalid base image format: manifest contains " + layerFiles.size() + " layers, but container configuration contains " + configurationTemplate.getLayerCount() + " layers");
        }
        buildContext.getBaseImageLayersCache().writeLocalConfig(originalConfigDescriptor.getDigest(), configurationTemplate);
        // Check the first layer to see if the layers are compressed already. 'docker save' output
        // is uncompressed, but a jib-built tar has compressed layers.
        boolean layersAreCompressed = !layerFiles.isEmpty() && isGzipped(destination.resolve(layerFiles.get(0)));
        // Process layer blobs
        try (ProgressEventDispatcher progressEventDispatcher = progressEventDispatcherFactory.create("processing base image layers", layerFiles.size())) {
            // Start compressing layers in parallel
            List<Future<PreparedLayer>> preparedLayers = new ArrayList<>();
            for (int index = 0; index < layerFiles.size(); index++) {
                Path layerFile = destination.resolve(layerFiles.get(index));
                DescriptorDigest diffId = configurationTemplate.getLayerDiffId(index);
                ProgressEventDispatcher.Factory layerProgressDispatcherFactory = progressEventDispatcher.newChildProducer();
                preparedLayers.add(executorService.submit(() -> compressAndCacheTarLayer(buildContext.getBaseImageLayersCache(), diffId, layerFile, layersAreCompressed, layerProgressDispatcherFactory)));
            }
            return new LocalImage(preparedLayers, configurationTemplate);
        }
    }
}

Example 34 with DescriptorDigest

use of com.google.cloud.tools.jib.api.DescriptorDigest in project jib by google.

the class LocalBaseImageSteps method getCachedDockerImage.

@VisibleForTesting
static Optional<LocalImage> getCachedDockerImage(Cache cache, DockerImageDetails dockerImageDetails) throws DigestException, IOException, CacheCorruptedException {
    // Get config
    Optional<ContainerConfigurationTemplate> cachedConfig = cache.retrieveLocalConfig(dockerImageDetails.getImageId());
    if (!cachedConfig.isPresent()) {
        return Optional.empty();
    }
    // Get layers
    List<Future<PreparedLayer>> cachedLayers = new ArrayList<>();
    for (DescriptorDigest diffId : dockerImageDetails.getDiffIds()) {
        Optional<CachedLayer> cachedLayer = cache.retrieveTarLayer(diffId);
        if (!cachedLayer.isPresent()) {
            return Optional.empty();
        }
        CachedLayer layer = cachedLayer.get();
        cachedLayers.add(Futures.immediateFuture(new PreparedLayer.Builder(layer).build()));
    }
    return Optional.of(new LocalImage(cachedLayers, cachedConfig.get()));
}

Example 35 with DescriptorDigest

use of com.google.cloud.tools.jib.api.DescriptorDigest in project jib by google.

the class BlobCheckerIntegrationTest method testCheck_exists.

@Test
public void testCheck_exists() throws IOException, RegistryException {
    RegistryClient registryClient = RegistryClient.factory(EventHandlers.NONE, "gcr.io", "distroless/base", httpClient).newRegistryClient();
    V22ManifestTemplate manifestTemplate = registryClient.pullManifest("latest", V22ManifestTemplate.class).getManifest();
    DescriptorDigest blobDigest = manifestTemplate.getLayers().get(0).getDigest();
    Assert.assertEquals(blobDigest, registryClient.checkBlob(blobDigest).get().getDigest());
}